For a natural hazard you have studied explain how physical processes have an impact on people and the economy.

A natural hazard is when extreme natural events or processes occur in an area of human settlement and cause loss of life and damage to the area. The natural hazard which I am going to explain is the earthquake. I will examine what effect an earthquake has on people in LEDC and MEDC countries, I will also look at how the earthquake affects the economy of the country which it hits.
An earthquake can be described as a geological natural hazard; earthquakes are caused by sudden movement along a fault line within the interior of the earth. The movement is the result of the release of strain in the rocks which builds up over a large amount of time. The point where the plates fracture takes place is known as the focus and on the surface this is known as the epicentre. The foci of an earthquake can be put into 3 groups, shallow, intermediate and deep focus. Shallow focus earthquakes cause the most damage.
On October 17th 1989, an earthquake hit the American city of San Francisco; t...